thomisi dabgherty



the outside wedge, see F l, weiem?.

Specicat n` of, Letters Patent Nol.. 12,816, dated May 8i; Y1855.

Erie and.; state, of, invented certain new s in Boot-'Crimpsg dofherebydeclared: thatthe same 'are y y d represented in the followingciiication dravvings i. y y

oenable others Skil din the art tomake 1 `mykinventionfI willproceedtodeeiryconstruction and use, referring whichthe same letters ine part`eac of the gures.

. y y giire `1`,"is 1an 'elevationofthe crimp with he `vamp `orfront-ofl aboot `upon it; ig.` 2, representsasectionnoflFigl l,cutperpen-` icularly through the center. Fig. 3, represectionof `l,c`utthrough the line ke a crimp bo the form represented i in thel 4drawing y'and cut scores in the edge as representedi at B, C and D,[and a groovejin thefedge in the parts l@ IandxlF for the `1 elbow" `.Gfwhich is madeof `metalVin the form"represented and perforatedfso as to traverse"freely uponthe screw Handso asto vibrate :upon the nut I which "isrounded where theelbow rests upon it, so

f asto allow it tondo s o with facility. I fasten aperforatedmetal stepJfin the crimpeboard i "inthe positionrepresented and fit the end v ofthe` shaft" of thescrew into it so as to turnfreely (butVnotwibrate asthe elbow `vibratesA upon the nut); The nutI is tted to the screwI-Iandprovided with projections t a whichextend peachside of the-elbow Usoas o: forml wo inclined planes lwhich orrespond `withthefinsideof theclasp K; which ClaSp is perforated` so as to traverse freely uponthescrew I-Lalidtheinside of armsyb b' are` scored yasrepresented, so`the leather v.upon the seize andlgri nutas `will bede- I makesomefslides L and earms N and O of the elbowGn` so; a totraverse freely,a'ndimake the"formfofthesection of a` y ,iso Ia to correspond with theinside ofjtheclasp P. and Q as representedfthe [arms of `which claspsarescored j upon sametpurpose. `Theshaftof thescrewH is` bent so as toscrew. H f

` The` crimp havingb `n constructed and completed as "above described,place the insidefsimilar to K and "for the form" crank R to turn theelbow in the.` bottom of the groove Jin the parts E andF and wetapieceofleathers, g cutlin aproper form for the front of a boot l and place `itupon the boardA and draw the corners downor out `onto the projections a,of the nut I, and hold them and push the clasps K onto themso as to holdor seize `the `corners of theleather andretain them there; whileI slipVthe slide L `up tothe part E and draw'the edges of theleather onto" itand push theyclasp AI onto them to retain fthem; while `I slip the slideM downto the `part` F and draw the edges ofthe leather` onto it and pushthe `clasps Q, onto them/to hold them` while I turn' the screw -HMandraise the nut I and elbow G ,which lifts or carries out the slides L andM which slip `upon the arms of the elbow so as to stretch the leatherbetween the clasps I), Q, and K at the same time it is drawn andstretched onto the crimp board. As the screw is turnedto stretch theleather S itslips a little on the nut and slides which are made smoothand draws the clasp on, so thatthe teeth in the inside of the claspssink into the leather and` hold it firmly; as it draws the tighterthe-clasps grip it. If you wish to change the draft upon any part of theleather turn the screw back, so as to loosen it` and change the positionof the leather under the clasp or clasps. When the leather is drawn ontothe crimp board and stretched as described, it may be fastened withtacks c -TT as represented in the drawings or otherwise, so that thescrew, elbow, slides and clasps may be removed and applied to an,- othercrimp board or to a series of crim boards in succession of the same orof di ferent sizes.` Thenumber of slidesand "clasps may be increasedupon the elbow if desired so as to seize the leather in a greater numberof places,and the whole of them operated by turning the screw.

`Most of the boot vcrimps heretofore made careeitherf very expensive orvery inconvenient to use, and do the crimping very imperfect-ly,requiring much time and labor to operate them. In the improvements whichI have made Il have endeavored to remedy these defects, and I havesucceededin the making of` a much better and cheaper apparatus andmonewith which the crim ing can be done more perfectly with far ess time`and laborthan has been heretofore required. lBy making the slidestotransverse on the si-ArrsrATsNTOFFICE-1 H SDAUGHERTY, ERIEQPNsYLVANM. y

the leg and foot of the crimp board so as to stretch it uniformly andprevent it from gathering in the instep so as to fold 0r wrinkle as itwould otherwise do; full up so as to be thick and stiff and make anuncomfortable boot. By using the same elbow, slides, clasps, etc., fornumerous crimp boards of the same or different sizes the apparat-us forstretching a quantity of leather costs far less than any other desirableapparatus for doing the same work.

In those crimps in which the elbow and screw are used, and which have nodevice to prevent the screw from vibrating with the elbow, if one partof the leather stretches more readily than another, so as to tip orvvibrate the elbow it carries the screw and the corners of the leatherone side or the other of the line Z, Z, so as to draw the leather out ofits proper shape which makes it cut to waste. I have remedied thatdefect by arranging my screw so that it can not vibrate: and making theelbow to vibrate upon the nut; so that the corners of the leather aredrawn in the direction of the line Z, Z, and in that direction only: Sothat the leather is stretched, so as not to cut to waste, consequently asmaller pattern will answer for a boot of a given size.

What I claim as my invention and desire to secure by Letters Patent inthe above de-

